公开(公告)号：US10929634B2

公开(公告)日：2021-02-23

申请号：US15840672

申请日：2017-12-13

Applicant: Samsung Display Co., Ltd.

Inventor： Yong Jin Jee ,  A Ram Song ,  Yun Ho Kim

IPC: G06K9/00 ,  G06F3/041 ,  G06F3/044

Abstract: An operating method of a touch sensor includes sensing first touch intensities in a first touch-sensing area by using first touch cells, sensing second touch intensities in a second touch-sensing area that is adjacent to the first touch-sensing area by using second touch cells each having an area that is smaller than that of each of the first touch cells, grouping some second touch cells among the second touch cells as a touch-sensing group having a same area as one of the first touch cells, calculating a representative touch intensity of the touch-sensing group by using the second touch intensities sensed by second touch cells in the touch-sensing group, and detecting a touch position by using the first touch intensities and the representative touch intensity.

公开(公告)号：US11269448B2

公开(公告)日：2022-03-08

申请号：US16987323

申请日：2020-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Yong Jin Jee ,  Gwang-Bum Ko ,  Sang Hun Park

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch sensor includes a plurality of touch driving electrodes arranged in each of a plurality of touch driving columns in a column direction, and a plurality of touch sensing electrodes arranged in each of a plurality of touch sensing columns in the column direction, the plurality of touch driving columns and the plurality of touch sensing columns being alternately arranged in a row direction. In each of the plurality of touch driving columns, two or more odd-numbered touch driving electrodes among the plurality of touch driving electrodes are substantially simultaneously driven during a first touch group driving period. In each of the plurality of touch driving columns, two or more even-numbered touch driving electrodes among the plurality of touch driving electrodes are substantially simultaneously driven during a second touch group driving period that is different from the first touch group driving period.